KROHNE OPTISWIRL 4070 EN - Manual (Page 19)

INSTALLATION
3
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OPTISWIRL 4070
www.krohne.com 02/2013 - 4000150606 MA OPTISWIRL4070C R07 en
3.4 Installation conditions
INFORMATION!
For accurate volumetric flow measurement the measuring device needs a completely filled pipe
and a fully developed flow profile.
Please observe the instructions regarding inlet and outlet pipe runs as well as the installation
position.
In the event of vibrations on the piping, select the installation site so that the vibrations are at
their lowest in a transverse direction to the flowmeter.
CAUTION!
When installing the device in the piping, the following points must be observed:
• Nominal diameter of connection pipe flange = nominal flange diameter of pipe!
• Use flanges with smooth holes, e.g. welding neck flanges.
• Align carefully the holes of the connecting flange and the flowmeter flange.
• Check the compatibility of the gasket material with the process product.
• Make sure that the gaskets are arranged concentrically. The flange gaskets must not project
into the pipe cross-section.
• The flanges have to be concentric.
• There must not be any pipe bends, valves, flaps or other internals in the immediate inlet run.
• Devices in sandwich version may only be installed using a centering ring.
• Never install the device directly behind piston compressors or rotary piston meters.
• Do not lay signal cables directly next to cables for the power supply.
INFORMATION!
If the danger of waterhammers can occur in steam networks appropriate condensate separators
have to be installed.
Suitable measures must be taken to avoid water cavitation if it is a possible risk.
MA_OPTISWIRL4070C_R07_en_150606_PRT.book Page 19 Wednesday, February 13, 2013 2:47 PM